Insulator.



No. 756,026. I PATENTED MAR. 29, 1904.

- w. s. KINSLBY & s. s. BELL;

INSUL'ATOR.

APPLICATION FILED AUG. 10, 1903.

- no menu UNITED STATES Patented March 29, 1904.

PATENT OFFICE.

WILLIAM S. KINSLEY AND STEWART S. BELL, OF READING,

MASSACHUSETTS.

INSULATOR.

SPECIFICATION forming part of Letters Patent No. 756,026, dated March29, 1904.

Application filed August 10, 1903.

To all whom it may concern:

Be it known that we, WILLIAM S. KINSLEY and STEWART S. BELL, of Reading,in the county of Middlesex and State of Massachusetts, have inventedcertain new and useful Improvements in Insulators, of which thefollowing is a specification.

This invention relates to insulators for supporting electric wires; andit has especial reference to insulators which are attached to trees.

The invention has for its object to provide an insulator in which thepart or member attached to the tree or other support shall be free fromliability to be electrically connected with the wire or conductorsupported by the insulator by water accumulating on the surfaces of theinsulator.

The invention consists in the improvements which we will now proceed todescribe and claim. 1

Of the accompanying drawings, forming part of this specification, Figure1 represents a side elevation of an insulator embodying our invention.Fig. 2 represents a section on line 2 2 of Fig. 1. Fig '3 represents asection on line 3 3 of Fig. 2. Figs. 1 and 5 represent modificationshereinafter referred to.

The same reference characters indicate the same parts in all thefigures.

In the drawings, (4 represents an electric conductor supported by ourimproved insulator. v

6 represents a supporting or attaching device, which as shown in Figs.1, 2, and 300mprises a screw threaded part or shank Z2, adapted to beengaged with a support, such as a tree-trunk, arms or branches divergingfrom the shank and constituting a forked part, the outer ends of saidarms being provided with eyes 6 b and a part 0, extending between thesaid arms and formed as a stud or bolt d and d represent sections .ofinsulating material collectively forming an insulatingblock having anaperture 0Z through which the conductor a passes, said aperture beingformed by semicircular recesses in the meeting faces of the sections dd. The upper section d is provided with an orifice at, which ex- SerialNo. 168,871. (No model.)

tends substantially parallel with the orifice d and receives the stud orbolt 0.

6 represents a binder, which is preferably composed of a length of stoutwire bent to encircle the sections d 0?, the ends of the wire beingtwisted together, as shown in Figs. 1 and 2.

It will be seen that the above-described construction insures aneffective insulation of the conductor a from the attaching member orbracket 6, the form and arrangement of the parts being such that thereis no liability of the formation of a short circuit through water on thesurfaces of the parts of the insulator. Y V

The sections d d, which may be porcelain or any othersuitable insulatingmaterial, are

preferably grooved, as indicated at d d, to engage the binding-wire 6,so that the wire prevents any end slip or movement of the insulatingmaterial. The sections d and (8 may also be provided with molded tenonsor dowels 0Z entering molded sockets formed for their reception, asindicated in Fig. 2.

We do not limit ourselves to the employment of the supporting device 6formed as shown in Figs. 1, 2, and 3. In Fig. 4 we show a modificationin which the insulatorsupport is a looped wire w formed into a shankportion adapted for engagement with an adjacent support, such as atree-limb, a stud or bolt portion which passes through the secondaryorifice 0Z and a forked portion con necting the shank and stud portions.In-Fig. 5 We show the insulator provided with two secondary orifices dand two looped wires w for attachment to two supports, such as two limbsof a tree.

We claim- 1. An insulator comprising a sectional insulating-body havinga main opening formed between the sections, and a secondary openingformed in one of the sections, a supporting device having an inner partextending through the secondary opening, and a forked outer part havinga shank adapted for connection with an adjacent support, and a binderencircling the body and located out of contact with the said forkedpart.

circling the body and located between and out of contact with the armsof the attaching member.

In testimony whereof we have affixed our I5 signatures in presence oftwo witnesses.

XVILLIAM S. .KINSLEY. STENART S. BELL.

Witnesses:

(J. F. BROWN, JAMES F. TwoMBLY.

